Combined quick-change filter cartridge and head



FIG. 1 is a top, rear, right side perspective view of a combined quick-change filter cartridge and head showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a rear elevational view thereof.

The cartridge is partially drawn in FIGS. 4-6 for convenience of illustration. 

The ornamental design for a combined quick-change filter cartridge and head, as shown and described. 